I've had psoriasis since I was a kid and I'm 44yo now. It comes and goes and for the most part has been limited to areas that are not so obvious. When it does flare up, it is sore, painful and really REALLY incovenient.
OTC creams didn't work, prescription meds were not an option and many homemade salves, ointments, lotions and rubs just didn't work for me.
Never tried aloe.
However, we use coconut oil for everything in my house and I tried it on my psoriasis. It was ok, but the results didn't last long. I put it on right after showering, while I was still damp. It's looked good that evening, but in the morning the dry patches would be back.
What did work for me was Shea butter. I only need to apply it once a day and I do so right after my shower. :) I have a little patch on my knee that's looking real good and doesn't itch or hurt.